Steve Jobs was a pioneer of the funnel business model in the early days of the internet. His vision was that almost any person or company with an interest in information, interaction, or media was a potential participant in the Apple funnel. The top of the Apple funnel was very broad, with devices from desktop computers to iPods. Apple attracted people into the funnel with products that were so intuitive and elegant that they became status symbols. And inside the funnel, the compatible and interconnected nature of the devices, along with a sizable content library, created multiple opportunities for further transactions.
Of course, if you're going the paid ad route, you could also use Facebook and Google re-targeting to keep that awareness and interest level high. For example, if you've ever noticed after leaving a particular website, that you begin to see their ad everywhere, there's a particular reason for that. Especially if they've already entered your sales funnel, this is a very powerful way to get them to act.
How many people could be inside the Amazon funnel? Basically anyone. Not only does Amazon offer a mind-boggling number of products, but it also offers a broad array of highly desirable personal and business services, including cloud hosting and fulfillment. In addition, Amazon’s platform that is so technologically advanced that it allows almost an infinite number of people to be in the platform at any given time.
Exits from stage – Similarly, seeing an excessively high number of people falling out of a particular stage is an indication that you aren’t doing enough to answer their questions or you’re asking them for too much of a commitment too early. Add more content to give them the information they need to move forward or make it easier for people to convert (e.g. don’t ask for a phone number when they’re downloading a certain e-book).
Eric Siu is the CEO of digital marketing agency Single Grain, which has helped companies such as Amazon, Uber and Salesforce acquire more customers, and co-founder of ClickFlow, an SEO experimentation tool that helps you increase your Google ranking. He also hosts two podcasts: Marketing School with Neil Patel and Growth Everywhere, an entrepreneurial podcast where he dissects growth levers that help businesses scale. Follow him on Twitter @ericosiu

Traffic: from referrals, organic, blog, and ads. They display a pop-up at the bottom of their blog posts and homepage for a free 30-day trial. If you sign up for the free trial, you will be redirected to the pricing page. And if you sign up for their email list, you will actually remain on the Crazy Egg’s blog page afterwards, keeping you engaging with even more content.
The truth? People are smart. They're not simply going to buy anything from anyone unless they feel there's an immense amount of value to be had there. Thus, your funnel needs to built that value and bake it in through a variety of means. But most importantly, you have to create a strong bond with your prospect, and that happens by being relatable, honest and transparent in your email warming sequence.
If you’re running a marketing services business, you might create content about how to choose a marketing agency, pricing guides, whether a company should go contract or hire in-house, etc. The above examples are non-promotional, educational content resources we’ve created for our readers who are considering hiring marketing agencies – i.e. in the middle of the funnel (MOFU).
One quick word of caution, though. With every piece of content you create for every stage of your funnel, you’re generating data. Though all of it is useful to your sales process in some way, it’s easy to get bogged down in data and metrics tracking instead of focusing on the few key performance indicators (KPIs) that will actually give you the information needed to make meaningful improvements.
The entrance to the CVS funnel combines a massive physical footprint with a growing digital presence. CVS has about 10,000 retail stores. Eighty percent of Americans live within 10 miles of a CVS store. With the expansion of CVS’s HealthHUBs to 1,500 locations, one analysis suggests that 75 percent of Americans would live within 10 miles of a HealthHUB. In addition, CVS/Aetna has access to about 18 million Aetna medical insurance members in all 50 states. On the digital front, CVS has 62 million loyalty program members whose purchasing patterns can be tracked and who can be the target of tailored promotions.
One of the core concepts in the digital marketing industry is the sales funnel. While odd sounding at first, this single core concept can take a business from virtually non-existent and unknown to multi-million-dollar marketing machine with mass saturation, seemingly overnight. In fact, there are skilled practitioners who have built a career around implementing this single concept in business.  
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